Change in coreboot[master]: mb/asrock/g41c-gs: Add g41m-gs variant

[Arthur Heymans (Code Review)]

Hello build bot (Jenkins),

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/23043

to look at the new patch set (#2).

Change subject: mb/asrock/g41c-gs: Add g41m-gs variant
......................................................................

mb/asrock/g41c-gs: Add g41m-gs variant

This board is quite similar to the other ones in this dir an can be
supported with little code changes.

TODO what works:
* DDR2 dual channel PC2-6400;
* SATA;
* USB;
* Ethernet;
* Audio;
* Native graphic init;
* SuperIO Sensors;
* Reboot, poweroff, S3 resume;
* Flashrom (vendor and coreboot);

TODO how tested:
Tests were run with SeaBIOS and Debian stretch, using Linux 4.9.65.

Change-Id: I6844efacaae109cf1e0894201852fddd8043a706
Signed-off-by: Arthur Heymans 
---
M src/mainboard/asrock/g41c-gs/Kconfig
M src/mainboard/asrock/g41c-gs/Kconfig.name
M src/mainboard/asrock/g41c-gs/gpio.c
A src/mainboard/asrock/g41c-gs/variants/g41m-gs/devicetree.cb
4 files changed, 161 insertions(+), 3 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/43/23043/2